package com.example.lotterysystem.common.utils;


import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;

import java.util.Collection;
import java.util.concurrent.TimeUnit;

@Configuration
public class RedisUtil {

    Logger log= LoggerFactory.getLogger(RedisUtil.class);

    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    /**
     * 设置值
     * @param key
     * @param value
     * @return
     */
    public  boolean set(String key,String value){
        try {
            stringRedisTemplate.opsForValue().set(key,value);
            return true;
        }catch (Exception e){

            log.error("RedisUtil error set（{}，{}） ",key,value,e);

            return false;

        }
    }


    /**
     * 设置值（有时间限制）
     */
    public boolean set(String key,String value,Long time){
        try {
            stringRedisTemplate.opsForValue().set(key,value,time, TimeUnit.SECONDS);
            return true;
        }catch (Exception e){

            log.error("RedisUtil error set（{}，{}，{}） ",key,value,time,e);

            return false;

        }
    }

    /**
     * 获取值
     * @param key
     * @return
     */
    public String get(String key){
        try {
            return StringUtils.hasText(key)?stringRedisTemplate.opsForValue().get(key):null;
        }catch (Exception e){
            log.error("RedisUtil error get（{}） ",key,e);
            return null;
        }

    }


    /**
     * 删除值
     *
     * @param key
     * @return
     */
    public boolean del(String... key) {
        try {
            if (null != key && key.length > 0) {
                if (key.length == 1) {
                    stringRedisTemplate.delete(key[0]);
                } else {
                    stringRedisTemplate.delete(
                            (Collection<String>) CollectionUtils.arrayToList(key)
                    );
                }
            }
            return true;
        } catch (Exception e) {
            log.error("RedisUtil error, del({})", key, e);
            return false;
        }
    }


    /**
     * 判断key是否存在
     *
     * @param key
     * @return
     */
    public boolean hasKey(String key) {
        try {
            return StringUtils.hasText(key)
                    ? stringRedisTemplate.hasKey(key)
                    : false;
        } catch (Exception e) {
            log.error("RedisUtil error, hasKey({})", key, e);
            return false;
        }
    }




}
